28566206 has 4 divisors (see below), whose sum is σ = 42849312. Its totient is φ = 14283102.

The previous prime is 28566191. The next prime is 28566229. The reversal of 28566206 is 60266582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7141550 + ... + 7141553.

It is an arithmetic number, because the mean of its divisors is an integer number (10712328).

Almost surely, 2^28566206 is an apocalyptic number.

28566206 is a deficient number, since it is larger than the sum of its proper divisors (14283106).

28566206 is a wasteful number, since it uses less digits than its factorization.

28566206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283105.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 28566206 is about 5344.7362890979. The cubic root of 28566206 is about 305.6920806443.

The spelling of 28566206 in words is "twenty-eight million, five hundred sixty-six thousand, two hundred six".